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engines/titanic/sound/auto_music_player_base.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "titanic/sound/auto_music_player_base.h"
+#include "titanic/game_manager.h"
+
+namespace Titanic {
+
+BEGIN_MESSAGE_MAP(CAutoMusicPlayerBase, CGameObject)
+	ON_MESSAGE(StatusChangeMsg)
+	ON_MESSAGE(TimerMsg)
+	ON_MESSAGE(LoadSuccessMsg)
+	ON_MESSAGE(ChangeMusicMsg)
+END_MESSAGE_MAP()
+
+CAutoMusicPlayerBase::CAutoMusicPlayerBase() : CGameObject(),
+	_initialMute(true), _isEnabled(false), _volumeMode(VOL_NORMAL), _transition(1) {
+}
+void CAutoMusicPlayerBase::save(SimpleFile *file, int indent) {
+	file->writeNumberLine(1, indent);
+	file->writeQuotedLine(_filename, indent);
+	file->writeNumberLine(_initialMute, indent);
+	file->writeNumberLine(_isEnabled, indent);
+	file->writeNumberLine(_volumeMode, indent);
+	file->writeNumberLine(_transition, indent);
+
+	CGameObject::save(file, indent);
+}
+
+void CAutoMusicPlayerBase::load(SimpleFile *file) {
+	file->readNumber();
+	_filename = file->readString();
+	_initialMute = file->readNumber();
+	_isEnabled = file->readNumber();
+	_volumeMode = (VolumeMode)file->readNumber();
+	_transition = file->readNumber();
+
+	CGameObject::load(file);
+}
+
+bool CAutoMusicPlayerBase::StatusChangeMsg(CStatusChangeMsg *msg) {
+	return true;
+}
+
+bool CAutoMusicPlayerBase::TimerMsg(CTimerMsg *msg) {
+	CChangeMusicMsg musicMsg;
+	musicMsg._action = MUSIC_START;
+	musicMsg.execute(this);
+
+	return true;
+}
+
+bool CAutoMusicPlayerBase::LoadSuccessMsg(CLoadSuccessMsg *msg) {
+	if (_isEnabled) {
+		// WORKAROUND: A problem was encountered with the EmbLobby music player
+		// not getting turned off when room was left, so was turned on again
+		// when loading a savegame elsewhere. This guards against it
+		CRoomItem *newRoom = getGameManager()->getRoom();
+		if (findRoom() != newRoom) {
+			_isEnabled = false;
+			return true;
+		}
+
+		playAmbientSound(_filename, _volumeMode, _initialMute, true, 0,
+			Audio::Mixer::kMusicSoundType);
+	}
+
+	return true;
+}
+
+bool CAutoMusicPlayerBase::ChangeMusicMsg(CChangeMusicMsg *msg) {
+	if (_isEnabled && msg->_action == MUSIC_STOP) {
+		_isEnabled = false;
+		stopAmbientSound(_transition, -1);
+	}
+
+	if (!msg->_filename.empty()) {
+		_filename = msg->_filename;
+
+		if (_isEnabled) {
+			stopAmbientSound(_transition, -1);
+			playAmbientSound(_filename, _volumeMode, _initialMute, true, 0,
+				Audio::Mixer::kMusicSoundType);
+		}
+	}
+
+	if (!_isEnabled && msg->_action == MUSIC_START) {
+		_isEnabled = true;
+		playAmbientSound(_filename, _volumeMode, _initialMute, true, 0,
+			Audio::Mixer::kMusicSoundType);
+	}
+
+	return true;
+}
+
+} // End of namespace Titanic